diff --git a/src/Alignment.jsx b/src/Alignment.jsx
index 51805ca..a51756d 100644
--- a/src/Alignment.jsx
+++ b/src/Alignment.jsx
@@ -56,7 +56,8 @@ class Alignment extends Component {
         !_.isEqual(this.props.molecule, nextProps.molecule) ||
         !_.isEqual(this.props.site_color, nextProps.site_color) ||
         !_.isEqual(this.props.text_color, nextProps.text_color),
-      should_update = !same_fasta || different_coloring;
+      new_x_coord = _.isEqual(this.props.x_pixel, nextProps.x_pixel),
+      should_update = !same_fasta || different_coloring || new_x_coord;
     if (should_update) {
       this.initialize(nextProps);
       return true;
diff --git a/src/app/FASTA/start_at_site_and_sequence.jsx b/src/app/FASTA/start_at_site_and_sequence.jsx
index 2ac335d..8d22886 100644
--- a/src/app/FASTA/start_at_site_and_sequence.jsx
+++ b/src/app/FASTA/start_at_site_and_sequence.jsx
@@ -23,7 +23,11 @@ class StartAtSiteAndSequence extends Component {
     return (
       <div>
         <div>
-          <h1>Begin centered on a given sequence (CY010004) and site (100).</h1>
+          <h1>
+            Begin centered on a given sequence (CY010004) and site ({
+              this.state.site
+            }).
+          </h1>
         </div>
         <input
           type="number"